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2701. Donders, Franciscus Cornelius. 06.03.1870. [Letter to Hermann von Helmholtz]. 2702. Donders, Franciscus Cornelius. 27.07.1862. [Letter to Hermann von Helmholtz]. 2703. Donders, Franciscus Cornelius. 07.12.1860. [Letter to Hermann von Helmholtz]. 2704. Donders, Franciscus Cornelius. 1865, ca. Onderzoekingen over den duur der psychische processen. 2705. Donders, Franciscus Cornelius. 26.11.1869. [Letter to Hermann von Helmholtz]. 2706. Donders, Franciscus Cornelius. n. d. [Letter to Hermann von Helmholtz]. 2707. Donders, Franciscus Cornelius. 1868, ca. Noematachometer [Notebook]. 2708. Donders, Franciscus Cornelius. 20.09.1855. [Letter to Hermann von Helmholtz]. 2709. Donders, Franciscus Cornelius. 25.03.1881. [Letter to Hermann von Helmholtz]. 2710. Donders, Franciscus Cornelius. n. d. [Letter to Hermann von Helmholtz]. 2711. Donders, Franciscus Cornelius. 31.07.1876. [Letter to Hermann von Helmholtz]. 2712. Donders, Franciscus Cornelius. 02.11.1861. [Letter to Hermann von Helmholtz]. 2713. Donders, Franciscus Cornelius. 1869. Over de snelheid van psychische processen. 2714. Donders, Franciscus Cornelius. 1865. Over de snelheid der gedachte en der wilsbepaling: Voorloopige mededeeling. 2715. Donders, Franciscus Cornelius. 15.03.1881. [Letter to Hermann von Helmholtz]. 2716. Donders, Franciscus Cornelius. 01.05.1877. [Letter to Hermann von Helmholtz]. 2717. Donders, Franciscus Cornelius. 21.01.1860. [Letter to Hermann von Helmholtz]. 2718. Donders, Franciscus Cornelius. 21.10.1857. [Letter to Hermann von Helmholtz]. 2719. Donders, Franciscus Cornelius. 26.09.1871. [Letter to Hermann von Helmholtz]. 2720. Donders, Franciscus Cornelius. 11.02.1858. [Letter to Hermann von Helmholtz]. 2721. Donders, Franciscus Cornelius. 1868-69. Over de snelheid van psychische processen. 2722. Donders, Franciscus Cornelius. 26.06.1853. [Letter to Hermann von Helmholtz]. 2723. Donders, Franciscus Cornelius. 18.08.1863. [Letter to Hermann von Helmholtz]. 2724. Donders, Franciscus Cornelius. 11.06.1888. [Letter to Hermann von Helmholtz]. 2725. Donders, Franciscus Cornelius. 1865, ca. Snelheid der Werking in 't Zenuwstelsel. |
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